git: sensor: Use sysctl lock

[Sepherosa Ziehau]

commit e50eb75e07202218010a91c8d038387aeb4fc86a
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date:   Thu Mar 26 21:50:31 2015 +0800

    sensor: Use sysctl lock
    
    Original devlist lock is not MPSAFE (it's locked find then unlocked
    used).  Since sensors are sysctl centric, we could just use sysctl
    lock here.

Summary of changes:
 sys/kern/kern_sensors.c | 65 ++++++++++++++++++++++++-------------------------
 1 file changed, 32 insertions(+), 33 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/e50eb75e07202218010a91c8d038387aeb4fc86a


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